As null belongs to the JS Falsy Values, you can simply do this:
console.log(null) // null
console.log(!!null) // false
Detailed explanation: https://www.samanthaming.com/tidbits/19-2-ways-to-convert-to-boolean/
Year: 2022
[SuccessFactors] Get manager and his employees via API
@my_endpoint=api2.successfactors.eu
@userId=managerId
### Query manager and his employees
GET https://{{my_endpoint}}/odata/v2/User('{{userId}}')?
$format=json&
$expand=directReports&
$select=firstName,lastName,email,teamMembersSize,directReports/firstName,directReports/lastName,directReports/userId,directReports/email
[CAP] Get ID for newly created entry in a table defined with aspect cuid
https://cap.cloud.sap/docs/cds/common#aspect-cuid
https://cap.cloud.sap/docs/node.js/databases#insertresult-beta
const result = await INSERT(payload).into(table)
const newEntries = [...result]
console.log("New ID: " + newEntries[0].ID)
[ABAP] Sum column using reduce with where condition
SELECT * FROM sflight INTO TABLE @DATA(lt_sflight).
DATA(a319_paymant_sum) = REDUCE #( INIT sum = 0
FOR flight IN lt_sflight WHERE ( planetype = 'A319' )
NEXT sum += flight-paymentsum ).
[ABAP] Finding maximum value of specific column in itab
DATA(maximum) = REDUCE #( INIT max = VALUE myType( )
FOR line IN myTable
NEXT max = COND #( WHEN line-myColumn > max THEN line-myColumn
ELSE max ) ).
[ABAP] OData – GET_STREAM implementation to return a PDF
METHOD /iwbep/if_mgw_appl_srv_runtime~get_stream.
* This method get's called when a media file is queried with $value. A binary stream will be returned.
TRY.
DATA(file_id) = VALUE zfile_id( it_key_tab[ name = 'file_id' ]-value ).
CATCH cx_sy_itab_line_not_found.
RETURN. " leave here when no file_id provided
ENDTRY.
DATA(ls_file) = get_file( file_id ) " read your file you want to return (if it's not yet a binary stream, convert it)
DATA(ls_stream) = VALUE ty_s_media_resource( value = ls_file-value
mime_type = ls_file-mimetype ). " in my case it's 'application/pdf'
" necessary to display the filename instead of $value in the viewer title
TRY.
" create pdf object
DATA(lo_fp) = cl_fp=>get_reference( ).
DATA(lo_pdfobj) = lo_fp->create_pdf_object( connection = 'ADC' ).
lo_pdfobj->set_document( pdfdata = ls_stream-value ).
" set title
lo_pdfobj->set_metadata( VALUE #( title = ls_file-filename ) ).
lo_pdfobj->execute( ).
" get pdf with title
lo_pdfobj->get_document( IMPORTING pdfdata = ls_stream-value ).
CATCH cx_fp_runtime_internal
cx_fp_runtime_system
cx_fp_runtime_usage INTO DATA(lo_fpex).
ENDTRY.
copy_data_to_ref( EXPORTING is_data = ls_stream
CHANGING cr_data = er_stream ).
" necessary for the pdf to be opened inline instead of a download (also sets the filename when downloaded)
/iwbep/if_mgw_conv_srv_runtime~set_header( VALUE #( name = 'content-disposition'
value = |inline; filename={ ls_file-filename }| ) ).
ENDMETHOD
Quick way to open a PDFViewer in your UI5 App:
const pdfViewer = new PDFViewer()
pdfViewer.setSource("/sap/opu/odata/ZMY_SEVICE" + my_path + "/$value") // my_path could be something like this "/PdfSet('file_id')"
pdfViewer.setTitle("My PDFViewer Title") // title of the popup, not the viewer
pdfViewer.open()
[ABAP] Create DATA-URL from xstring
https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URLs
DATA lv_filetype TYPE char4.
DATA lv_content TYPE xstring.
" get your data, for example a jpg
" lv_filetype = 'jpg'
" lv_content = ....
DATA(mimetype) = /iwwrk/cl_mgw_workflow_rt_util=>get_mime_type_from_extension( lv_filetype ).
DATA(base64) = /iwwrk/cl_mgw_workflow_rt_util=>base64_encode( lv_content ).
DATA(lv_data_url) = |data:{ mimetype };base64,{ base64 }|.
[ABAP] OData – Filtering, Sorting, Paging
" Filter, Sort, Paging
/iwbep/cl_mgw_data_util=>filtering( EXPORTING it_select_options = it_filter_select_options
CHANGING ct_data = et_entityset ).
/iwbep/cl_mgw_data_util=>orderby( EXPORTING it_order = it_order
CHANGING ct_data = et_entityset ).
/iwbep/cl_mgw_data_util=>paging( EXPORTING is_paging = is_paging
CHANGING ct_data = et_entityset ).
[ABAP] Delete all rows from index
If you want to delete all lines from a certain index, e.g. 6, you can do the following:
DELETE lt_data FROM 6 TO lines( lt_data ).
As result, your table will only hold the first 5 rows.